[Therion] Wrong average calculation from compass/backcompass data

[Evaristo Quiroga]

Hi,

I found that the error had been fixed in version 5.4.1
>
>
>       Therion 5.4 (5.4.1 now 2017-04-18)
>
>
>  *
>     bugs and issues fixed:
>     27. invalid compass/backcompass averaging formula
>

But I am using the  "Therion 5.4.1+6884381 (2018-04-12)", were I have 
found the actual bug.

Evaristo.

El 16/05/2018 a las 14:17, Evaristo Quiroga via Therion escribió:
> Hi,
>
> I have data from a survey with fore/back sight compass and clino. I 
> have detected a Therion bug calculating the average data, comparing 
> with the error loops with Auriga, Visualtopo, Compass and Therion.
>
> See the next compare.
>
> Example from the data in .th file:
>
>> data normal from to length compass backcompass clino backclino left 
>> right up down
>>         279.0             -      0.00    0.00    0.00 0.00 0.00    
>> 0.00    0.00    0.00    0.00
>>         279.0        279.0A      2.33   236.8    56.8 -11.4 11.4    
>> 0.00    0.00    0.00    0.00 # .superficie
>>        279.0A         279.1      4.51   163.2   343.2 -32.2 32.2    
>> 0.00    0.00    0.00    0.00 # .superficie hasta anclaje desviador
>>         279.1         279.2     12.41     1.5   181.5 -77.7 77.7    
>> 0.00    0.00    0.00    0.00
>>         279.2         279.3      1.95   212.2    33.1 -17.7 16.6    
>> 0.00    0.00    0.00    0.00 
>
>
> Data transferred to Survex by the "data.svx" file
>
>> *data    normal    from    to    tape  compass    clino
>>     1    2    0.000000    268.348831    0.000000
>>     1    3    2.330000    235.148831    -11.400000
>>     3    4    4.510000    161.548831    -32.200000
>>     4    5    12.410000    359.848831    -77.700000
>>     5    6    1.950000    210.998831    -17.150000
>
>
> You can see Therion do a wrong fore/back sight compass average 
> calculation. The good data average are:
>
> 1     3    236.8     -11.4
>
> 3    4    163.2    -32
>
> 4    5    1.5        -77.7
>
> 5    6    212.65    -17.15
>
> The clino average seems OK.
>
> Searching in the mail-list I have found the bug was reported before. I 
> think is not corrected since then.
>
> https://www.mail-archive.com/therion@speleo.sk/msg04660.html
>
> Regards,
>
> Evaristo.
>
> _______________________________________________
> Therion mailing list
> Therion at speleo.sk
> https://mailman.speleo.sk/listinfo/therion


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20180516/11e68707/attachment.htm>